typeError: Cannot read property 'config' of undefined

[rafalradomski]

HI when I using function

this.quill.formatText(0, placeholder.length, this.style);

I have error like this:

TypeError: Cannot read property 'config' of undefined
    at http://local.com:9000/lib/quill/dist/quill.js:10230:40

Is looking for some config:

if (!(value && value !== format.config["default"])) {
          formats[name] = null;
}

Whole function looks like:

Quill.prototype.formatText = function(start, end, name, value, source) {
    var delta, formats, ref;
    ref = this._buildParams(start, end, name, value, source), start = ref[0], end = ref[1], formats = ref[2], source = ref[3];
    formats = _.reduce(formats, (function(_this) {
      return function(formats, value, name) {
        var format;
        format = _this.editor.doc.formats[name];
        if (!(value && value !== format.config["default"])) {
          formats[name] = null;
        }
        return formats;
      };
    })(this), formats);
    delta = new Delta().retain(start).retain(end - start, formats);
    return this.editor.applyDelta(delta, source);
  };

How I can provide this config or skip it?

[willrowe]

It looks like either the passed format isn't valid or you didn't pass a value for the format.

[jhchen]

@willrowe is correct this is likely the issue

[brettimus]

Hey I found the source of this problem, and it was that the passed format isn't valid like @willrowe said.

Are formats getting completely overhauled soon? Otherwise, would it be worthwhile to have a more helpful error message when an invalid format is applied?